Distortion properties of the interval spectrum of IPFM generated heartbeats for heart rate variability analysis. - Michael Brennan; Marimuthu Palaniswami; Peter Kamen (IEEE Trans. Biomed. Eng., 2001)

Do existing measures of Poincare plot geometry reflect nonlinear features of heart rate variability? - Michael Brennan; Marimuthu Palaniswami; Peter Kamen (IEEE Trans. Biomed. Eng., 2001)